A rectangular open channel of width $5.0 \mathrm{~m}$ is carrying a discharge of $100 \mathrm{~m}^{3} / \mathrm{s}$. The Froude number of the flow is 0.8 . The depth of flow (in $\mathrm{m}$ ) in the channel is
(A) 4
(B) 5
(C) 16
(D) 20
A rectangular open channel of width $5.0 \mathrm{~m}$ is carrying a discharge of $100 \mathrm{~m}^{3} / \mathrm{s}$. The Froude number of the flow is 0.8 . The depth of flow (in $\mathrm{m}$ ) in the channel is
(A) 4
(B) 5
(C) 16
(D) 20